TY  - BOOK
AU  - SPIEGEL, M. R
TI  - CALCULUS OF FINITE DIFFRENCES AND DIFFERENCE EQUATIONS
SN  - 07-060218-2
U1  - 515.33 SPI'C 
PY  - 1971///
CY  - NEWYORK
PB  - MCGRAW HILL
ER  -